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FIRMWARE DETAILS

iOS 17.1

Build: 21B80Oct 25, 2023Delta OTA
Stable

View details

Filename
68a3d71f88cd714e19a9b06230a173bf2afa8e7a.zip
File size
478.5 MB
File type
Delta OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
3ea3e2a4410656e8029c672ca7bd2eb46147c4bf8d48c291df653c24fc3cb0dd
SHA-1
af2abb8e75575de2528d91a928d6cfd369b20db2
Required starting builds
21B74
Board restrictions
Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Compatible hardware (1)

Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

AppleDBhttps://api.appledb.dev/ios/iOS%3B21B80.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 0c4ce2fa2e67994f9d70a827901c0dd4